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Abiotic Stress Responses of Horticultural Crops: Bhlh Transcription Factor Characteristics and Roles

Blaine Campbell

Abiotic stressors are important environmental elements that have an impact on crop quality, productivity, and growth. One of the biggest families of transcription factors (TFs) in plants, the bHLH family is crucial to many distinct abiotic stress response pathways, including those in response to water deficiency, high salt, low temperature, and nutritional deficits. Numerous research in model plants have investigated the functions and regulatory mechanisms of members of the bHLH family in the response to abiotic stress since the discovery of the bHLH family in plants. The regulation of abiotic stress response and resistance in horticulture crops has been the subject of substantial research in recent years. Reviewing these studies can shed light on them and provide new paths for research on horticulture crops’ abiotic stress responses. Here, we focus on the function and regulatory mechanisms of important bHLH while summarising the structure, categorization, and regulation of bHLH TFs.